Collapsible tube dispensing means



Jan. 10, 1933.

COLLAPSIBLE TUBE DISPENSING MEANS Original Filed March 27, 1951 Charles Bolz INVENTOR ATTORNEY c. BOLZ 1,894,152

Patented Jan. 10, 1933 a CHARLES-DOLE, OF PLEASANT GROVE, NEW JERSEY COLLAPSIBLE TUBE DISPENSING MEANS Original application filed March 27, 1931, Serial No. 1932. Serial My present invention has referenceto a collapsible tube, of .the type contalnrng tooth paste, etc., and the invention pertains particularly to a construction of and means for closing the rear end of the tube to effectively seal the same and to also provide the said rear end with a central ear or like extension that is designed to be gripped by a winding key so that the desired quantity of paste may be forced through the mouth of the tube in accordance with the degree in which the key is turned on the tube.

The invention further consists of the matter divided out of my allowed application 5 upon collapsible tube dispensing means, filed by me on March 27, 1931, Serial No. 525,807 and allowed April 20, 1932.

In the drawing:

Figure 1 is a side elevation of a collapsible tube in accordance with this invention.

Figure 2 is a side elevation thereof looking toward the rear end of the tube. I

Figures 3, 4 and 5 are perspective views of diiferent forms of winding; keys.

In the drawing the collapsible tube 1 is of the ordinary type, the same having its reduced and exterior threaded mouthportion normally closed by a removable cap 2. The tube 1, however, dilfers from the usual type of tubes by forming the flattened sides atthe rear end of the tube with central and substan tially U-shaped extensions 3. The ears or extensions 3 are, of course, arranged in lapping relation and the flattened bottom has its edges closed by a centrally bent and, therefore, cross sectionally U-shaped sealing plate or strip 4. The strip 4, in the present instance, is centrally rounded outwardly upon itself, as at 5, and the inner grooved or channeled wall of the said portion 5 receives therein the ears 3. The strip 4, as well as its part 5, is tightly compressed against the bottom of the tube and its extended ears 3. The compressed p strip 4 is further secured to the rear end of the tube by a continuous line of indentures 4'. The rear end of the tube is thus securely sealed.

The ears 3 and the bowed portion 5 of the closing or sealing strip 4 provide extensions 53 that are designed to be engaged by the arms 525,807. Divided and this application filed June 3, No. 615,201.

of keys. One of such keys is disclosed by Figure 3 of the drawings, and comprises a head portion 6 from which extend parallel spaced arms 7. The head 6 is in the nature of a disc, and the slot that afi'ords the space between the arms 7 enters the head. The arms are thus rendered yieldable either inwardly or outwardly with respect to each other, so that the central projecting ear can be readily arranged between the arms and the turning of the key will wind, first the ears and thereafter the body of the tube so that when the cap 2 is removed paste in desired quantities will be caused to flow or find an outlet through the tube. The key is turned until the entire tube is wound upon itself so that all of the paste will be delivered from the tube. Of course, the tube is flattened or collapsed only as desired quantities of paste are delivered therefrom. It is to be noted that the key engages with the tube to the rear of the bottom proper thereof and not forward of the closing or sealing strip 4 which further insures the forcible removal of the entire contents of the tube.

Another form of key is illustrated by Figure 4. This key also includes a disc or similar head 8 having a substantially rectangular extension which is slotted longitudinally from its outer end to provide parallel arms 9. The slot between the arms doesnot enter the head 8, but in other respects the key is similar to that previously described.

In Figure 5 the shank 10 of the key 11 is provided with a central elongated slot 12 to receive the ear extension of the tube 1 therethrough. In this instance the shank 10 is in the nature of a rigid element and is not yieldable as are the arms provided on the shanks of the keys previously described, but 90 all of the keys are, of course, employed for winding the tube upon itself to cause the contents thereof to be directed therefrom in desired quantities and at determined intervals and to likewise cause the entire collapsing of the tube and the removal of the entire contents therefrom.

Having described the invention, I claim:

A collapsible tube having its open end folded upon itself to close the same, and the 100 said folded and flattened portion having a central ear extension, a cross sectional]; U- shaped compressible sealing strii arranged over the said folded end and t e said ear extension, said sealin stri having indentures entering said tu e an said ear extension, and the central portion of the sealing strip and said ear designed to be engaged by a winding key.

In testimony whereof I afiix my signature.

CHARLES BOLZ. 

